The process by which air is circulated through or mixed with a substance such as soil or a liquid.
By extension, a process in which other gases (such as carbon dioxide or nitrogen or argon) are circulated through or mixed with a substance (usually liquid), sometimes with the consequence of increasing the transfer of air into the same liquid at the surface due to the induced circulation.
The property of a propagated wave being thrown back from a surface (such as a mirror).
The act of reflecting or the state of being reflected.
The process or mechanism of determining the capabilities of an object at run-time.
The folding of a part; a fold.
Something, such as an image, that is reflected.
Careful thought or consideration.
An implied criticism.